Email authentication, or validation, is a collection of techniques aimed at providing verifiable information about the origin of email messages by validating...

Domain-based Message Authentication, Reporting and Conformance (DMARC) is an email authentication protocol. It is designed to give email domain owners the...

transmission protocols used for email do not have built-in authentication methods: this deficiency allows spam and phishing emails to use spoofing in order to...

DomainKeys Identified Mail (DKIM) is an email authentication method that permits a person, role, or organization that owns the signing domain to claim...

protocol. The email client which uses the SMTP protocol creates an authentication extension, which the mail server uses to authenticate the sender. This...

Email encryption may also include authentication. Email is prone to the disclosure of information. Although many emails are encrypted during transmission...

Comparison of email clients Dark Mail Alliance Disposable email address E-card Electronic mailing list Email art Email authentication Email digest Email encryption...

email authentication method that ensures the sending mail server is authorized to originate mail from the email sender's domain. This authentication only...

Authenticated Received Chain (ARC) is an email authentication system designed to allow an intermediate mail server like a mailing list or forwarding service...

may log in using any authentication mechanism supported by the server. It is mainly used by submission servers, where authentication is mandatory. SMTP...

identity. Closed-loop email authentication is useful for simple situations where one party wants to demonstrate control of an email address to another,...

SUBMISSION port 587. Amir Herzberg (19 May 2009). "DNS-based email sender authentication mechanisms: A critical review". Computers & Security. 28 (8):...

services without re-entering authentication factors. It should not be confused with same-sign on (Directory Server Authentication), often accomplished by using...

cryptographic security services for electronic messaging applications: Authentication Message integrity Non-repudiation of origin (using digital signatures)...

Reale and Alessandra Antolini on behalf of AgID. Registered mail Email authentication Secure messaging eIDAS De-Mail "Posta elettronica certificata – PEC"...

Hashcash is a proof-of-work system used to limit email spam and denial-of-service attacks. Hashcash was proposed in 1997 by Adam Back and described more...

spam. Recipients of such messages see them as a form of unsolicited bulk email or spam, because they were not solicited by the recipients. They are substantially...

server which was setup without authentication. Verifications.io offered its clients services which could verify if emails were bounced, or were otherwise...

Security Layer (SASL), it is often used in email software as part of SMTP Authentication and for the authentication of POP and IMAP users, as well as in applications...

Signing Practices (ADSP) is an optional extension to the DKIM E-mail authentication scheme, whereby a domain can publish the signing practices it adopts...

Multi-factor authentication (MFA; two-factor authentication, or 2FA) is an electronic authentication method in which a user is granted access to a website...

Hosting providers can manage a user's own domain name, including any email authentication scheme that the domain owner wishes to enforce to convey the meaning...

include mailing list handling in Variable envelope return path (VERP), email authentication via SPF, spam filtering, and backscatter reduction in Bounce Address...

standards for email authentication in 2004. The name is an acronym of MTA Authorization Records In DNS. Lightweight MTA Authentication Protocol (LMAP)...

the GPL license, version 3.x.[citation needed] Category:Email authentication E-mail authentication overview MARID (IETF WG in 2004) DKIM DomainKeys Alexey...

Internet Drafts about DNSBLs, in 2010 on the standardization of Feedback loop (email). John R. Levine of Taughannock Networks (2003–2013) Yakov Shafranovich...

RNA found in some Gammaproteobacteria Sender Policy Framework, for email authentication Shortest Path First, or Dijkstra's algorithm IBM Structured Programming...

Framework (SPF) Simple Authentication and Security Layer (SASL) RFC 4422 SMTP Authentication Variable envelope return path Comparison of email clients for information...

corresponds. The result of the authentication can be saved in a new header field, according to RFC 6212, like so: Authentication-Results: receiver.example;...

attacker, having two-factor authentication enabled may prevent improper access. Notable cases of email hacks include: Email archives from the Climatic...